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ヒラノ シンゴ
Hirano Shingo 平野 信吾 所属 神奈川大学 工学部 応用物理学科 職種 助教 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2016/06 |
| 形態種別 | 学術雑誌 |
| 査読 | 査読あり |
| 標題 | FORMATION OF MASSIVE PRIMORDIAL STARS: INTERMITTENT UV FEEDBACK WITH EPISODIC MASS ACCRETION |
| 執筆形態 | 共著 |
| 掲載誌名 | ASTROPHYSICAL JOURNAL |
| 出版社・発行元 | IOP PUBLISHING LTD |
| 巻・号・頁 | 824(2),pp.119-145 |
| 国際共著 | 国際共著 |
| 著者・共著者 | ◎Takashi Hosokawa,Shingo Hirano,Rolf Kuiper,Harold W. Yorke,Kazuyuki Omukai,Naoki Yoshida |
| 概要 | We present coupled stellar evolution (SE) and 3D radiation-hydrodynamic (RHD) simulations of the evolution of primordial protostars, their immediate environment, and the dynamic accretion history under the influence of stellar ionizing and dissociating UV feedback. Our coupled SE RHD calculations result in a wide diversity of final stellar masses covering 10 M-circle dot less than or similar to M-* less than or similar to 10(3) M-circle dot The formation of very massive (greater than or similar to 250 M-circle dot) stars is possible under weak UV feedback, whereas ordinary massive (a few x10 M-circle dot) stars form when UV feedback can efficiently halt the accretion. This may explain the peculiar abundance pattern of a Galactic metal-poor star recently reported by Aoki et al., possibly the observational signature of very massive precursor primordial stars. |
| DOI | 10.3847/0004-637X/824/2/119 |
| ISSN | 0004-637X/1538-4357 |
| ORCIDのPut Code | 31843093 |
| PermalinkURL | http://orcid.org/0000-0002-4317-767X |
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